Obtained a replacement top strap, but it is not "tight" on the square breech "notch". Creates a slight gap in breech closing all the way. I figure there are three methods to resolve: 1. Peen or metal punch the top strap at back of square notch; 2. Peen the square plug on top breech so that it fills the notch; 3. Try another replacement top strap and good luck. I think best option is #1. Any other options ?
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